interviews last night on cbs's 60 minutes. >> mitt romney knows why he is behind in the polls. susan mcginniss has more. >> reporter: president obama and governor mitt romney appeared on 60 minutes last night. romney defended himself against accusations he hasn't laid out details for his plan to fix the economy. >> you are asking the american people to hire you as president of the united states. they would like to hear specifics. >> specifically i will not raise taxes on middle income folks. i will not lower the share of taxes paid by higher individuals. >> reporter: president obama told steve croft romney's plan won't work. >> he seems to only have one note. tax cuts for the wealthy and rolling back regulations. >> reporter: after romney released summaries of past income tax returns on friday. romney said he paid 14% last year because most of his income came from capital gains. >> i think it is the right way to encourage economic growth, to get people to invest, start businesses, to put people to work. >> reporter: the obama camp jumped on that comment issuing a statement sayi